[英]how to filter a many-to-many fied?django
例:
class Person(model.Models)
name = model.CharField(max_length=30)
age = model.IntegerField()
class Book(model.Model)
title = model.CharField(max_length=30)
author = model.ManyToManyField(Person)
per1 = Person('Jack',10)
per1.save
per2 = Person('Rose',20)
per2.save
book1 = Book()
book1.title = 'booktitle'
book1.author.add(per1)
book1.author.add(per2)
現在我想像這樣獲得'book1'obj
{
'title':'booktitle',
'author':[
{
'name':'Jack',
'age':10,
}
]
}
'book1'obj中只有一位作者如何過濾相關字段? 有人可以幫助我嗎?
您可以使用:
Book.objects.filter(author="Jack").all()
您還可以過濾多個作者:
Book.objects.filter(author=["Jack", "Rose"]).all()
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